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Case study of hoover dam
Hoover dam case study
Case study of hoover dam
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According to the Cobuild Advanced Learning Dictionary, a dam is defined as, A wall that is built across a river in order to stop the water flowing and to make a lake.” The Hoover Dam is located in the Colorado River between Arizona and Nevada. It was first called the Boulder Dam but was later named the Hoover Dam. It was named after President Herbert Hoover. Hoover was not only the president but also an engineer, and when he was Secretary of Commerce (before being President) he urged the construction of the dam. The dam is 726 feet tall and is about 1200 feet wide. The Hoover Dam was startied to be built in March of 1931. According to the official Bureau of Reclamation for the Hoover Dam, the dam is, “A concrete arch-gravity type …show more content…
This money was used for various parts of the construction. This included houses for the workers in Boulder City. These houses were 7.6 miles away from what was once the construction site of the dam. The money was also used for the materials used in the dam. These included 5 million barrels of cement, 45 million pounds of steel, 6.6 million tons of concrete, 5 20 ton cables (about 200,000 pounds), dynamite, and 600 miles of pipe. If the Hoover Dam were built today with all of these materials, it would cost about 860 million …show more content…
How It Was Built There were many steps to building the Hoover Dam. The first step was to blast the canyon walls of the Black Canyon. The blasting of the canyon walls helped make four diversion tunnels to move the constant flow of the Colorado’s River water around where the workers were constructing the dam. There were two tunnels made on each side of the canyon. When it was summer the tunnels would be very, very hot (about 140, but in the winter the tunnels would be the exact opposite. When the canyon walls were blasted, the extra rock was then used to make a different route for the Colorado River. After blasting the walls and clearing the rock, workers would then clear the walls of the Black Canyon. During the clearing of the walls, the workers carried 44 pound jackhammers to get rid of the unstable rock. Workers hung to heights of 800 feet to do this treacherous task. The dam base also had to be built. The men had to dig half a million cubic yards to reach the bedrock which was 40 feet below. Concrete was poured into the base. It took 2 years of pouring concrete to
John Adams Dam was built on another Genesee River tributary to form a recreational pond affecting 43.78 miles of river (Fish, n.d.). There is a small, unnamed barrier affecting 3.16 miles of Genesee River tributary in the center of the park. I assume that it had been used during the building of walkways or roads in the park; however, there is no documentation on the dam’s purpose.
Behind Millerton Lake, lies an existing structure made up of concrete of 319 foot high, this dam is called the Friant Dam. In the San Joaquin Valley below the project's authority of Fresno, Madera, Kern, and Tulare; the water holds and deliver up to a million acres. In 1933 and throughout 1934, the state couldn't find enough contributors to buy revenues bonds to complete the project. Luckily, the River and Harbors Act of 1935 by the United States Congress came through and financed under the United State Army Corps of Engineers.
In December 1936 the United States Department of the Interior authorized the Lower Colorado River Authority to construct a low dam at the site of an old crossing on the river known as Marshall Ford. Marshall Ford Dam was completed in 1941 through the collaboration of the United States Bureau of Reclamation (USBR) and the Lower Colorado River Authority (LCRA) of Texas. The original purpose of the dam was to prevent floods from devastating Austin, TX. The capital city had substandard heavy damage from previous floods since its establishment in 1846. Soon bureaucrats came together to create the Colorado River Project, wanting to create a series of dams along the Colorado River to create hydroelectric power and serve to control floods and droughts. With Buchanan dam well under way with a total of six planned Marshall Ford was the only dam designed primarily for flood control and the only dam in which USBR oversaw construction. With money scarce there was debate over the final height dam and it reservoir capacity. This issue resolves itself with the flood of 1938. Once completed Marshall Ford Dam would flood 65 miles of the Colorado to form Lake Travis, creating the largest of the seven reservoirs known as the Highland Lakes.
20 dams have been built, many of them by the U.S. Bureau of Reclamation, along the River and the tributaries. The Hoover Dam, which holds back at the Black Canyon to form the reservoir Lake Mead, one of the largest artificial lakes in the world. The Glen Canyon D... ... middle of paper ... ... nts for profit along the river's course can hardly complain when a river flows where it's supposed to go.
Grand Coulee Dam is a hydroelectric gravity dam on the Columbia River in Washington State, built by industrialist Henry J. Kaiser It is among the most famous dams in the United States. The reservoir it created is called the Franklin Delano Roosevelt Lake. The reservoir is named after the United States President who seemed to love dams and hydroelectric power and who was involved with the project through to the final completion of the dam. The dam was built as part of the Columbia Basin Project as a way to irrigate the desert areas of the Northwest United States. The dam started during the 1930s as a public works project and finished toward the beginning of World War Two. The initial construction plan was reconfigured during construction for more height. Its height was determined by the point at which the water from the reservoir began backing up into Canada. The scope and size of the dam is hard to comprehend. It is over a mile long and taller than the Great Pyramid of Giza, in fact, all the pyramids at Giza can fit within the base of the Grand Coulee Dam. The dam is so large that a truck at the base looks like a toy, this creates some perspective into the dam's true size. When the dam was completed in the early 1940s it was the largest dam in the world.
Mulholland's aqueduct could deliver up to 258 million gallons a day, but its weak link was crossing the San Andreas Fault. As a hedge against a disabling earthquake — and against sabotage — he sought to build a dam massive enough to hold one year's supply of water. The construction of the St. Francis Dam began sometime in 1924 silently so as not to attract the attention of the farmers dependent on the water of San Francisquito Creek. The water brought from the high Sierra aquifer through strings of artificial reservoirs connected by giant pipes and canals roaming over 200 miles across the allocated region of San Francisquito Canyon of the Sierra Pelona Mountains would turn the small city of San Francisquito Canyon to grow into a promising
Over the years Glen Canyon Dam has been the spark for hundreds of debates, rallies, and protests. These debates have been going on for almost forty years now. The fact is that the dam created a huge lake when it was built, this is what bothers environmentalists. This lake is called Lake Powell and thousands of people depend on its tourists for income. The lake also filled up a canyon called Glen Canyon, some people say it was the most beautiful place on earth. The anti-dam side of the debate has its basis in the fact that Lake Powell is currently covering Glen Canyon. It was very remote so few people got to witness its splendor. This is probably the reason the dam was built in the first place, ignorance.
Boulder Dam (aka Hoover Dam) Who: Hoover is authorized. What: It gave jobs to unemployed workers. 726 ft high and 1,244 feet long. World's tallest dam, and second largest dam.
middle of paper ... ... Engineers could try to make the walls near the water line stronger to prevent flooding. There also should have been a way to detach the drill string that would be more convenient.
The thirties was a time of anxiety -- after the major stock market crash of 1929, the Great Depression was sparked. The economy is in the dumps, crime rate increased, mass migrations occurred, and much more. This despair inducing time caused a majority of the American people to be poor, or if they were rich before the incident, they would at least have a much less amount of money than they had before. Many people were looking for jobs, but the country did not have any jobs to offer them. Then soon enough, the president at the time, Herbert Hoover, issued the creation of the Hoover Dam, which had opened up a large amount of jobs for the people. Sure, the job was extremely dangerous -- hundreds died in the creation of the large dam -- but the people needed money. They would’ve done almost anything in the economic grave that they dug themselves in at this point. They originally hired mostly Chinese immigrants to build the dam, but soon enough, more people in need of money were up for the job. They also started using concrete for the Hoover Dam, which has stuck until today’s time, in which most buildings are made up of concrete. Concrete is so relied on today due to its toughness and durability. The Hoover Dam popularized the use of concrete in building.
This was done to flood and destroy German farms, coal mines, and factories which in turn would slow their production to help the Allies to beat Germans. According to dambusters.org.uk they called this project Upkeep and it had two other applications that were spherical and were for anti-ship applications and were called Highball and Baseball and the whole group was codenamed Golfmine. The English were forced to rethink how to do it because they had already attacked once before causing them to put torpedo nets upstream from the dams. This is what caused
It is said that the Grand Canyon was created through the Colorado river cutting away at the rock. How is this possible? Geologists say that the canyon several rivers joined, the plateaus were created when the river cut through. Douglas theory: spillover theory, the Colorado poured into a basin and was cutting away as it did this causing...
Dams operate by using water as its main source of power. They produce power from fast volumes of moving water that turns a generator. This falling water at one gallon of water per second, can create one kilowatt of electrical power if it falls one hundred feed. When water behind a dam is released, it runs through a pipe called a penstock, which then delivers it to the turbine. Different shapes are used on these turbines, but are generally created to harness kinetic force of the moving water as well as the water pressure.
There were about 30,000 people in the area before the flood. The Western Reservoir was built in the 1840s, but became generally known as the South Fork dam. It was designed to supply extra water for the Main Line canal from Johnstown to Pittsburgh. By saving the spring floods, water could be released during the dry summers. When the dam was completed in 1852, the Pennsylvania Railroad completed the track from Philadelphia to Pittsburgh, and the canal business began its decline.
The Golden Gate Bridge is a major tourist attraction in San Francisco, California. It is one of the longest suspension bridges in the world and it’s also the top suicide location in the world.The Golden Gate Bridge is a symbol of Northern California. The bridge serves as a means of transportation.